Microchip Technology / Atmel
ATMEGA644-20AU
8-bit Microcontrollers - MCU 64kB Flash 2kB EEPROM 32 I/O Pins
Basic Information
View Datasheet ↗- Manufacturer
- Microchip
- Brand
- Microchip Technology / Atmel
- Product Category
- 8-bit Microcontrollers - MCU
- Series
- ATmega644
- Package
- TQFP-44
- Mounting Style
- SMD/SMT
- Packaging
- Tray
- RoHS
- Compliant (source record)
Technical Specifications
30 parameters- Core
- AVR
- Data Bus Width
- 8 bit
- Maximum Clock Frequency
- 20 MHz
- Program Memory Size
- 64 kB
- Data RAM Size
- 4 kB
- ADC Resolution
- 10 bit
- Number of I/Os
- 32 I/O
- Operating Supply Voltage
- 2.7 V to 5.5 V
- Minimum Operating Temperature
- - 40 C
- Maximum Operating Temperature
- + 85 C
- Height
- 1 mm
- Length
- 10 mm
Show more parameters (18)
- Product
- MCU
- Program Memory Type
- Flash
- Width
- 10 mm
- Data RAM Type
- SRAM
- Data ROM Size
- 2 kB
- Data ROM Type
- EEPROM
- Interface Type
- I2C, SPI, USART
- Analog Supply Voltage
- 1.8 V to 5.5 V
- I/O Voltage
- 1.8 V to 5.5 V
- Moisture Sensitive
- Yes
- Number of ADC Channels
- 8 Channel
- Number of Timers/Counters
- 3 Timer
- Processor Series
- megaAVR
- Supply Voltage - Max
- 5.5 V
- Supply Voltage - Min
- 2.7 V
- Tradename
- AVR
- Watchdog Timers
- Watchdog Timer
- Unit Weight
- 0.038801 oz
Technical data, historical stock, and reference prices are for verification only. Confirm current supply, quotation, and lead time through inquiry. Similar parameters do not establish direct replacement.